Update constraints in packages

Merge remote-tracking branch 'origin/5.x' into 5.next

# Conflicts:
#	src/Validation/Validator.php

Fix up more docblock sentences/types.

Fix up more docblock sentences/types.

Fix up more docblock sentences/types.

Fix up permissions via umask. (#18940)

Fix some spelling and broken code snippets. (#18791)

Fix some spelling and broken code snippets. (#18791)

Fix some spelling and broken code snippets. (#18791)

Fix some spelling and broken code snippets. (#18791)